Airborne 08.18.17

AD NUMBER: 2005-07-03
MANUFACTURER: McDonnell DouglasSUBJECT: Airworthiness Directive 2005-07-03SUMMARY: The FAA is adopting a new airworthiness
directive (AD) for certain McDonnell Douglas Model DC-9-10, -20,
-30, -40, and -50 series airplanes; and Model DC-9-81 (MD-81) and
DC-9-82 (MD-82) airplanes. This AD requires repetitive detailed
inspections of the upper and lower caps of the rear spar of the
left and right wings, and corrective action if necessary. This AD
also provides an optional modification that would end the
repetitive inspections. This AD is prompted by reports of fatigue
cracks in the upper and lower caps of the wing spar. We are issuing
this AD to detect and correct fatigue cracking in the upper and
lower caps of the rear spar of the left and right wings, which
could result in structural failure of the wings.